Dr Tomicah Tilleman knows blockchains. He is the Chair of the Global Blockchain Business Council, a co-founder of the Blockchain Trust Accelerator in the US, and a member of the Advisory Board of the BitFury Group. In his role for civic thinktank New America, he works with the world's largest asset owners to reduce risk through strategic investments in social impact and development. For four years, Dr Tillemann was also senior advisor for "Civil Society and Emerging Democracies' to Secretaries of State Hillary Clinton and John Kerry. Dr Tilleman was in New Zealand recently for the Institute of Directors leadership conference.